private GridCell GetEmptyRenderCell(GridColumn column) { if (_EmptyRenderCell == null) _EmptyRenderCell = new GridCell(); int oldIndex = _EmptyRenderCell.ColumnIndex; _EmptyRenderCell = GetEmptyCell(_EmptyRenderCell, column.ColumnIndex); if (_EmptyRenderCell.ColumnIndex != oldIndex) _EmptyRenderCell.ClearEffectiveStyles(); return (_EmptyRenderCell); }